Dennis Quaid has slammed his ex-wife Meg Ryan for revealing all about their 2000 marriage break-up, insisting her allegations of his infidelity will only cause their son Jack more "pain" and "turmoil".Ryan and Quaid have refused to divulge the details of their split for the past eight years, but the actress once dubbed 'America's sweetheart' recently opened up about the dark days that followed her divorce.She told America's InStyle magazine, "Dennis was not faithful to me for a very long time, and that was very painful. I found out more about that after I was divorced."But Quaid is furious about her candid comments, and has chastised Ryan for dragging up the past - saying she should think twice about what she airs to the press if she wants to protect their 16-year-old son's feelings.And he has hinted that Ryan's accusations of infidelity are not completely accurate - although he refuses to be drawn on more details.He tells the New York Daily News, "It was eight years ago, and I find it unbelievable that Meg continues publicly to rehash and rewrite the story of our relationship."Also, I find it regrettable that our son, Jack, has to be reminded in a public way of the turmoil and pain that every child feels in a divorce."

The Vantage Point star is now married to Kimberly Buffington, and the couple welcomed twins last year.

He adds, "I, myself, moved on years ago and am fortunate to have a happy, beautiful family."

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